From cd1864fce3977323c995c400f41cbcc2da46f73a Mon Sep 17 00:00:00 2001
From: Thor Brigsted <thorbrigsted@gmail.com>
Date: Sun, 8 Oct 2017 23:44:08 +0200
Subject: [PATCH] Better asset handling on add/remove node

---
 Example/ExampleNodeGraph.asset      | Bin 0 -> 4196 bytes
 Example/ExampleNodeGraph.asset.meta |   9 +++++++++
 Scripts/NodeGraph.cs                |  11 ++++++++++-
 3 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 Example/ExampleNodeGraph.asset
 create mode 100644 Example/ExampleNodeGraph.asset.meta

diff --git a/Example/ExampleNodeGraph.asset b/Example/ExampleNodeGraph.asset
new file mode 100644
index 0000000000000000000000000000000000000000..3818860395fba40593b349d133f374883f8c86a7
GIT binary patch
literal 4196
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zhY^FwwXtBr5B%V1Ab&cYj#6Mvy(5hWJs(%sg72A!U*C<le{Vd0(SH47Ywp)*=EmBi
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zTz~b%pZhYid2w=QVRqm$|9ID&1I_{GfOEh(;2dxcI0u{q&H?AZe{?{<O^}ac{9fUs
YGPhEwEmcc=>)dJ<mdY$Cj^&(fA6EsBPyhe`

literal 0
HcmV?d00001

diff --git a/Example/ExampleNodeGraph.asset.meta b/Example/ExampleNodeGraph.asset.meta
new file mode 100644
index 0000000..723ec56
--- /dev/null
+++ b/Example/ExampleNodeGraph.asset.meta
@@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 5398d565241ec2d489f41c368ca6cf24
+timeCreated: 1507498811
+licenseType: Free
+NativeFormatImporter:
+  mainObjectFileID: 11400000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Scripts/NodeGraph.cs b/Scripts/NodeGraph.cs
index 9e3c7d8..58baa23 100644
--- a/Scripts/NodeGraph.cs
+++ b/Scripts/NodeGraph.cs
@@ -18,7 +18,10 @@ public abstract class NodeGraph : ScriptableObject, ISerializationCallbackReceiv
     public virtual Node AddNode(Type type) {
         Node node = ScriptableObject.CreateInstance(type) as Node;
 #if UNITY_EDITOR
-        UnityEditor.AssetDatabase.AddObjectToAsset(node, this);
+        if (!Application.isPlaying) {
+            UnityEditor.AssetDatabase.AddObjectToAsset(node, this);
+            UnityEditor.AssetDatabase.SaveAssets();
+        }
 #endif
         nodes.Add(node);
         node.graph = this;
@@ -29,6 +32,12 @@ public abstract class NodeGraph : ScriptableObject, ISerializationCallbackReceiv
     /// <param name="node"></param>
     public void RemoveNode(Node node) {
         node.ClearConnections();
+#if UNITY_EDITOR
+        if (!Application.isPlaying) {
+            DestroyImmediate(node, true);
+            UnityEditor.AssetDatabase.SaveAssets();
+        }
+#endif
         nodes.Remove(node);
     }